West-north-west of the great wall was an immense depression. Only a conical hill rose above its last undulations. The upper edge of that depression was at an altitude of 1,550 ft. above the sea level, whereas the top of "Church-rock" was fully a thousand feet higher—viz. 2,550 ft.
A Grand Rock.
"Church rock."
Church Rock.
(Side view.)
At the terminus of the first section of the cliff range, interrupted by a great fissure from the second section, another structure in course of formation not unlike "Church-rock" could be observed. It had a quadrangular tower surmounting it. There was in the second section of the range a regular quadrangle of rock, with a high tower upon a conical hill, and another castle-like structure surmounting a conical base. The two were most impressive as they stood in their sombre red against the brilliantly blue sky.